The centre of pressure is
(A) Always below the centroid of the area
(B) Always above the centroid of the area
(C) A point on the line of action of the resultant force
(D) At the centroid of the submerged area
(A) Always below the centroid of the area
(B) Always above the centroid of the area
(C) A point on the line of action of the resultant force
(D) At the centroid of the submerged area